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Nutrition Science Databases
How the database is build
How to use it for data filing and data analysis
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DOI: 10.3748/wjg.v21.i29.8952
World J Gastroenterol 2015 August 7; 21(29): 8952-8963
ISSN 1007-9327 (print) ISSN 2219-2840 (online)
© 2015 Baishideng Publishing Group Inc. All rights reserved.
SYSTEMATIC REVIEWS
Effects of cereal fiber on bow el function: A systematic
review of intervention trials
Jan de Vries, Paige E Miller, Kristin Verbeke
Jan de Vries, De Vries Nutrition Solutions Inc., 7213 CE Gorssel,
The Netherlands
Solutions Inc., Reuvekamp 26, 7213 CE Gorssel,
The Netherlands. [email protected]
Telephone: +31-6-54224148
Paige E Miller, Center for Epidemiology, Biostatistics, and
Computational Biology, Exponent, Inc., Chicago, IL 60661,
United States
Received: January 29, 2015
Peer-review started: January 30, 2015
First decision: March 10, 2015
Revised: April 15, 2015
Accepted: June 10, 2015
Article in press: June 10, 2015
Published online: August 7, 2015
Paige E Miller, Nutrition and Food Service, Edward Hines Jr. VA
Hospital, Hines, IL 60141, United States
Kristin Verbeke, Department of Clinical and Experimental
Medicine, KU Leuven, 3000 Leuven, Belgium
Author contributions: de Vries J contributed substantially to
conception and design, acquisition of data, analysis of data and
drafting the article; Miller PE contributed substantially to drafting
the article; Verbeke K contributed to conception and design,
analysis of data and drafting of the article.
Abstra c t
AI M : To comprehensively review and quantitatively
summarize results from intervention studies that
examined the effects of intact cereal dietary fiber on
parameters of bowel function.
Supported by Funding from Kellogg Company, Battle Creek,
MI, United States.
M ETHODS: A systematic literature search was conducted using PubMed and EMBASE. Supplementary
literature searches included screening reference lists
from relevant studies and reviews. Eligible outcomes
were stool wet and dry weight, percentage water in
stools, stool frequency and consistency, and total transit
time. Weighted regression analyses generated mean
change (± SD) in these measures per g/d of dietary
fiber.
Conflict-of-interest statement: Dr. de Vries J has received
fees for systematically reviewing the literature reported in this
publication from Kellogg Company, Battle Creek, MI, USA.
Dr. Miller PE received fees while working at Exponent, Inc
from Kellogg Company, Battle Creek, MI, USA, to support the
writing process of the manuscript. Professor Verbeke K, PhD, is
co-beneficiary of the WK Kellogg Chair in Cereal Sciences and
Nutrition (Kellogg Company, Battle Creek, MI, USA).
Data sharing statement: No additional data are publically
available. Interested readers can contact the first author .
RESULT S: Sixty-five intervention studies among
generally healthy populations were identified. A
quantitative examination of the effects of non-wheat
sources of intact cereal dietary fibers was not possible
due to an insufficient number of studies. Weighted
regression analyses demonstrated that each extra
g/d of wheat fiber increased total stool weight by
3.7 ± 0.09 g/d (P < 0.0001; 95%CI: 3.50-3.84), dry
stool weight by 0.75 ± 0.03 g/d (P < 0.0001; 95%CI:
0.69-0.82), and stool frequency by 0.004 ± 0.002
times/d (P = 0.0346; 95%CI: 0.0003-0.0078). Transit
Open-Access: This article is an open-access article which was
selected by an in-house editor and fully peer -reviewed by external
reviewers. It is distributed in accordance with the Creative
Commons Attribution Non Commercial (CC BY-NC 4.0) license,
which permits others to distribute, remix, adapt, build upon this
work non-commercially, and license their derivative works on
different terms, provided the original work is properly cited and
the use is non-commercial. See: http://creativecommons.org/
licenses/by-nc/4.0/
Correspondence to: Dr. Jan de Vries, De Vries Nutrition
WJG| www.wjgnet.com
8952
August 7, 2015| Volume 21| Issue 29|
Construction database
Physicochemical
characteristics
Ingredients
Labeling information
Safety information
Reviews
Projects
Publications
Supplier information
Individuals
Parameters
Relevant
documents
Sample types
Etc, etc
Settings
= defined as
measurement
Results intervention in 1
day
= defined as
timeline
Interventions
Study design
Reports
Results intervention > 1
day
A set of tables that provides
flexibility in the majority of
the fields to be retrieved
from publications. Advised
to filled in as first step of a
project.
Workflow in
database
Reports
Relevant
documents
A tool to make a
report on a specific
topin within the
project
A table that provides the
possibility to include
relevant documents for
the project
Reviews
Project
Projects
Settings
A table that provides the
possibility to include
relevant reviews for the
project
Publication
Publication
A set of tables that
provides flexibility in
the majority of the
fields to be retrieved
from publications.
Advised to filled in as
first step of a project.
A table that provides the
possibility to describe the
characteristics of the
interventions used in the
studies
Study design
Physicochemical
characteristics
Publication
Parameters
Individuals
Individuals
Individuals
Ingredients
Sample types
Etc, etc
Labeling information
Safety information
Supplier information
intervention
Results
intervention
> 1 day
= defined as
measurement
intervention
Results
intervention
in 1 day
= defined as
timeline
intervention
Suppliers
A table that provides the
possibility to give details
of the suppliers of the
ingredients used in the
studies
Project
Give projectname
Give projectnumber
Portal tab for added publications
New publications ALWAYS needs
to be added by this button
Portal tab for added reviews
Portal tab for added relevant documents, such as definition issues
Selecting Settings
Click this button to
open menu options
Click this button to go
to settings
Setting up the settings
Value list for types of
interventions
Value
Value
Different
listlistforfor
tabs
types
other
for of
elements
different
interventions
value
of analysis
lists
retrieval of information from publication
Always start with + in the project lay-out!
New publications ALWAYS needs
to be added by this button
Tab in the portal to add
specific information on
included individuals in study
Tab in the portal to add
specific information on
study design
Tab in the portal to add
parameters measured in
the study
Tab in the portal to add
relevant references for the
project from reference list
Characteristics of individuals
Click this button to add a
new study group
Study design
Pup up window for
entering information on
the sample types
Pup up window for
entering information on
time points studied
Pup up window for entering
information on the method to
estimate food intake
Click this button to add a
new document that is
related to the study design
Workflow: parameters and statistics
Workflow: characteristics interventions
Click this button to enter a
new intervention group
Worksflow: results
Click this button to
enter one new
parameter studied
Click this button to enter
one day a parameter is
measured
Click this button to
enter all parameters
studied
Click this button to enter
all days a parameter is
measured
Workflow: quality appraisal
For human intervention studies the database contains 2 sets of
quality appraisals to estimate the quality of the included study.
Click on the button “Appraisal” to activate the pop-up menu for the
appraisal of the quality.
Analysing the data
• Use the button “Functions” to get to the instruments
that enable finding and exporting data
•
•
•
Developed to view the most important data of ONE single publication in the
database
Provides a list of ALL the results of measurement data of ALL publications in
one project
Provides a list of ALL the results of the timeline data of ALL publications in one
project
Lay-outs equiped to search AND export data to excel:
•
Provides a lay-out to search the data on measurement results within one
project on ONE single parameters that reports on measurements.
•
Provides a lay-out to search the data on timeline results within one project on
ONE single parameters that reports on measurements.
•
Provides a lay-out to conduct a more complex search. Search results are
reported in a next lay-out of which measurement results can be exported
•
Provides a lay-out to conduct a more complex search. Search results are
reported in a next lay-out of which timeline results can be exported
Lay out to set up a specific search on
the results
Click this button after
filling in the search
characteristics for
your search
An example on how the search results
could look like on a specific search
Button for export of
data to excel